Column j
tells you how your g
s should be grouped if you wanted exactly j
groups.
Columns 1
and 10
are not very useful, but maybe column 2
is a good example. It is telling you that if you wanted exactly two groups then they would be:
group1: {g1, g5}
group2: {g2, g3, g4, g6, g7, g8, g9, g10}